The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Mar. 17, 2017
Hydrophobic polyethylene membrane for use in venting, degassing, and membrane distillation processes
Entegris, Inc., Billerica, MA (US);
Wai Ming Choi, West Newton, MA (US);
Jad Ali Jaber, Westford, MA (US);
Vinay Goel, Billerica, MA (US);
Vinay Kalyani, Salem, NH (US);
Anthony Dennis, Billerica, MA (US);
ENTEGRIS, INC., Billerica, MA (US);
Abstract
Described is a polyethylene membrane and in particular an ultra-high molecular weight polyethylene member that provides a high air permeability and is hydrophobic. The membranes have small pores and are suitable for sterilization by exposure to gamma radiation. The membranes can be made by methods that involve one or more of stretching the membrane and grafting hydrophobic monomers onto the membrane surface. A perfluorinated monomer, such as perfluoro-n-octyl acrylate, can be grafted to one or more surfaces of the membrane. The membrane have a high flow rate compared to unstretched or ungrafted membranes.